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chapter 9 science.
science chapter 9
| Question | Answer |
|---|---|
| what is erosion? | the process by which natural forces move weathered rock and soil from one place to another. |
| what is sediment? | the material moved by erosion. |
| what is deposition? | occurs where the agents erosion, deposit, or lay down. |
| what is gravity? | is the force that moves rock and other materials downhill. |
| what is mass movement? | any one of several processes that move sediment downhill. |
| what is a runoff? | is water that moves over Earth´s surface. |
| what are rills? | it forms tiny groves in the soil. |
| what is a stream? | is a channel along which water is continually flowing down a slope. |
| what is a tributary? | is a stream or river that flows into a larger river. |
| what is a flood plain? | the flat, wide area of land along a river. |
| what is a meander? | is a loop-like bend in the course of a river. |
| what is a oxbow lake? | is a mender that has been cut off from the river. |
| what is a alluvail fan? | is a wide, sloping deposit of sediment formed where a stream leaves a mountain range. |
| what is a delta? | sediment deposited where a river flows into an ocean or lake builds up a land-form. |
| what is groundwater? | is the term geologists use for this underground water. |
| what is a stalactite? | a deposit that hangs like an icicle from the roof of a cave. |
| what is a stalagmite? | its a slow dripping builds up. |
| what is karst topography? | the roof of a cave collapses because of the erosion of the underlying limestone, the result is a depression called a sinkhole. its a type of landscape. |
| what is energy? | is the ability to do work or cause change. |
| what is potential energy? | is energy that is stored and waiting to be used later. |
| what is kinetic energy? | is the energy an object has to its motion. |
| what is abrasion? | is the wearing away of rock by a grinding action. |
| what is friction? | is the force that opposes the motion of one surface as it movers across another surface. |
| what is turbulence? | the water moves every which way in a type of movement. |